Seller Tools

Free Amazon Seller Tools

Professional-grade calculators and estimators by RIDGE. Built with the same methodology that powers our institutional analysis reports. No signup required.

Amazon FBA Fee & Profit Calculator

Calcular FBA fulfillment fees, referral fees, storage costs, and net profit per unit. Supports weight/size tiers and multiple mercados with detailed cost breakdowns.

Profitability FBA Fees ROI
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Niche Opportunity Score Calculator

Evaluate any Amazon niche across four dimensions: demand strength, concorrência intensity, profit potential, and market health. Get a composite 0-100 score with actionable verdicts.

Niche Analysis Scoring Opportunity
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BSR to Monthly Sales Estimator

Convert any Amazon Best Seller Rank into estimated daily and monthly sales. Covers 20+ categories across all major mercados with logarithmic estimation curves.

BSR Sales Estimate Revenue
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Amazon Marketplace Comparison

Interactive reference comparing all 19 Amazon mercados. Sortable data on fees, market size, concorrência, taxes, and entry difficulty with RIDGE recommendation scores.

19 Marketplaces Sortable Reference
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Multi-Marketplace FBA Fee Calculator

Compare Amazon fees side-by-side across multiple mercados. Auto-converts currencies, calculates referral and FBA fees, and shows net margins for each selected market.

Multi-Market Fee Compare Currency
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These tools provide estimates only. Actual Amazon fees and sales figures vary by product, season, and mercado conditions. For comprehensive analysis backed by 39 fontes de dados and Monte Carlo simulation, order a professional RIDGE report.

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